Corrosion inhibition bactericide for oil field and preparation method thereof

Abstract

The invention belongs to the technical field of oil field water treatment, and particularly relates to a corrosion inhibition bactericide for an oil field and a preparation method thereof.The preparation method comprises the following steps that S1, 1-vinyl-3-alkyl imidazole bromide is prepared, 1-vinyl imidazole and alkyl bromide serve as reactants, and irradiation treatment is conducted through 60Co gamma rays to obtain the 1-vinyl-3-alkyl imidazole bromide; s2, preparation of the corrosion inhibition bactericide: adding an acetic acid solution into chitosan for dissolving to obtain a chitosan solution, then adding the 1-vinyl-3-alkyl imidazole bromide obtained in S1, and performing irradiation treatment by using 60Co gamma rays to obtain the corrosion inhibition bactericide. The corrosion inhibition bactericide for the oil field is prepared by adopting an irradiation method, has two properties of corrosion inhibition and sterilization, is high in corrosion inhibition and sterilization efficiency, stable in performance, environment-friendly and small in dosage, and can effectively control biological corrosion of pipelines and equipment of an oil field system.

Description

A kind of oil field corrosion inhibitor and bactericide and preparation method thereof technical field The invention belongs to oil field water treatment technical field, be specifically related to a kind of oil field corrosion inhibitor and bactericide and preparation method thereof Law. Background technique In the secondary oil recovery technology of the oil field, a large amount of re-injection water is required, because the re-injection water generally all contains sulfate Reducing bacteria, saprophytic bacteria, etc., are prone to cause metal corrosion, formation blockage, chemical deterioration and a series of fines that are not conducive to water injection and oil recovery. At the same time, due to the high content of calcium and magnesium ions in the reinjection water, it is easy to cause serious scaling of the water injection pipeline and formation. As a result, water injection pipelines and formations are blocked, all of which bring huge economic losses to ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of anti-corrosion bactericide for oil field and its preparation method in view of the deficiencies in the prior art, which solves the problems of large amount of bactericide used, difficult biodegradation, poor bactericidal effect, and single function. With the advantages of efficient corrosion inhibition and sterilization, stable performance, environmental friendliness, and less dosage, it can effectively control the biocorrosion of pipelines and equipment in oilfield systems and meet the needs of oilfield production

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